Table 2.
Effects of liver fat on metabolic traits and of metabolic traits on intrapancreatic fat
| Trait | Standard coefficient | SE | p value |
|---|---|---|---|
| Liver fat and metabolic traits | |||
| Effect of liver fat on HbA1c | 0.016 | 0.013 | 0.172 |
| Effect of liver fat on fasting plasma glucose | 0.028 | 0.011 | 0.008 |
| Effect of liver fat on fasting insulin | 0.083 | 0.051 | 0.105 |
| Effect of liver fat on total cholesterol | 0.073 | 0.070 | 0.297 |
| Effect of liver fat on HDL-cholesterol | −0.100 | 0.253 | <0.001 |
| Effect of liver fat on LDL-cholesterol | 0.038 | 0.060 | 0.527 |
| Effect of liver fat on triacylglycerol | 0.175 | 0.039 | <0.001 |
| Effect of liver fat on ALT | 0.163 | 0.055 | 0.004 |
| Effect of liver fat on AST | 0.098 | 0.040 | 0.015 |
| Effect of liver fat on ALP | 0.108 | 0.032 | 0.001 |
| Effect of liver fat on GGT | 0.176 | 0.069 | 0.019 |
| Effect of liver fat on total amylin | 0.072 | 0.063 | 0.257 |
| Effect of liver fat on C-peptide | 0.132 | 0.103 | 0.204 |
| Effect of liver fat on total GLP-1 | −0.050 | 0.076 | 0.513 |
| Effect of liver fat on GIP | 0.009 | 0.089 | 0.920 |
| Effect of liver fat on glucagon | 0.050 | 0.058 | 0.394 |
| Metabolic traits and intrapancreatic fat | |||
| Effect of HbA1c on intrapancreatic fat | −0.369 | 0.504 | 0.465 |
| Effect of fasting plasma glucose on intrapancreatic fat | 1.142 | 0.565 | 0.044 |
| Effect of fasting insulin on intrapancreatic fat | 0.243 | 0.137 | 0.077 |
| Effect of total cholesterol on intrapancreatic fat | 0.120 | 0.088 | 0.172 |
| Effect of HDL-cholesterol on intrapancreatic fat | −0.832 | 0.238 | 0.001 |
| Effect of LDL-cholesterol on intrapancreatic fat | 0.230 | 0.106 | 0.031 |
| Effect of triacylglycerol on intrapancreatic fat | 0.614 | 0.205 | 0.003 |
| Effect of ALT on intrapancreatic fat | 0.270 | 0.203 | 0.187 |
| Effect of AST on intrapancreatic fat | 0.048 | 0.282 | 0.866 |
| Effect of ALP on intrapancreatic fat | −0.025 | 0.349 | 0.943 |
| Effect of GGT on intrapancreatic fat | 0.209 | 0.161 | 0.057 |
| Effect of total amylin on intrapancreatic fat | 0.113 | 0.141 | 0.422 |
| Effect of C-peptide on intrapancreatic fat | 0.114 | 0.087 | 0.194 |
| Effect of total GLP-1 on intrapancreatic fat | 0.244 | 0.124 | 0.050 |
| Effect of GIP on intrapancreatic fat | 0.338 | 0.106 | 0.002 |
| Effect of glucagon on intrapancreatic fat | 0.251 | 0.152 | 0.099 |
Data on liver fat, HbA1c, fasting plasma glucose, fasting insulin, total amylin, C-peptide, total GLP-1, GIP, glucagon, ALT, AST, ALP, GGT and triacylglycerol were log-transformed
Single-mediator model with single-level data was used to investigate mediation. All mediation analyses were adjusted for age, sex, ethnicity and BMI
ALP, alkaline phosphatase; ALT, alanine aminotransferase; AST, aspartate aminotransferase; GGT, γ-glutamyl transpeptidase